CS2841B Datasheet | onsemi

features to implement off-line fixed frequency current-mode control with a minimum number of external ponents. The CS2841B (a variation of the CS2843A) is designed specifically for use in automotive operation. The low start threshold voltage of 8.0 V (typ), and the ability to survive 40 V automotive load dump transients are important for automotive subsystem designs. The CS2841 series has a history of quality and reliability in automotive applications. The CS2841B incorporates a precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. Duty-cycles greater than 50% are also possible. On board logic ensures that VREF is stabilized before the output stage is enabled. Ion implant resistors provide tighter control of undervoltage lockout. Features - ăOptimized for Off-Line Control - ăInternally Trimmed Temperature pensated Oscillator - ăMaximum Duty-Cycle Clamp - ăVREF Stabilized Before Output Stage Enabled - ăLow Start-Up Current - ăPulse-By-Pulse Current Limiting - ăImproved Undervoltage Lockout - ăDouble Pulse Suppression - ă1.0 % Trimmed Bandgap Reference - ăHigh Current Totem Pole Output - ăPb-Free Packages are Available- http://onsemi. 8 1 14 1 PDIP-8 N SUFFIX CASE 626 SOIC-14 D SUFFIX CASE 751A PIN CONNECTIONS AND MARKING DIAGRAM P VFB Sense OSC CS2841BEB AWL YYWWG PDIP-8 VREF VCC VOUT GND CS2841BD14G AWLYWW P NC VFB NC Sense NC OSC SOIC-14 VREF NC VCC VCC PWR VOUT PWR GND CS2841B = Device Code = Assembly Location = Wafer...